One of the first rules to securing your accounts today is having a unique password for all of them. With so many unique credentials it's next to impossible for the average person to remember them. This is why a good password manager is so important, it allows you to safely store and retrieve these electronic credentials.
I have been meaning to write an article about password managers. I recently came across the following article in BetaNews. Here is an excerpt, "Here’s the contradiction: you need secure, unique and hard-to-remember passwords to protect your online (and offline) accounts from being hacked. However, remembering those secure, unique and hard-to-remember passwords is another matter entirely. Thankfully there is a solution, and it’s called a password manager." (read the rest of the article)
One piece of advice, whatever password manager you choose make sure that your data file is backed up.